Mitsubishi Electric MELSEC iQ-R Series User Manual page 29

Section 3 NAME AND FUNCTION OF EACH PART
(3) Example of use
(a) Procedure for continuously measuring periodic electric energy
If you turn Periodic electric energy measurement flag (Yn1/Yn2) to ON only while measurement is
needed, this module accumulates the power starting at the previously measured amount. Usage
procedure is the same as (a) in (2).
An example is shown below.
Periodic electric energy 1 measurement flag (Yn1)
Periodic electric energy 1 data completion flag (Xn1)
Figure 3.4.2-3 Example of continuous measurement of periodic electric energy 1
(b) Procedure for measuring periodic electric energy at every reset
By the following usage procedure, this module accumulates electric energy every time after resetting
periodic electric energy.
(i) Check that Periodic electric energy measurement flag (Yn1/Yn2) is OFF and Periodic electric energy
reset request (Yn3/Yn4) is OFF.
(ii) Set Periodic electric energy reset request (Yn3/Yn4) to ON.
The specified periodic electric energy is reset to 0 kWh, and Periodic electric energy reset completion
flag (Xn3/Xn4) will be turned ON.
(iii) Check that Periodic electric energy reset completion flag (Xn3/Xn4) has become ON, and then set
Periodic electric energy reset request (Yn3/Yn4) to OFF.
Periodic electric energy reset completion flag (Xn3/Xn4) will be turned OFF.
(iv) When starting measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to ON.
This module starts measuring the specified periodic electric energy, and Periodic electric energy data
completion flag (Xn1/Xn2) will be turned OFF.
(v) When stopping measurement, set Periodic electric energy measurement flag (Yn1/Yn2) to OFF.
This module stops measuring the specified periodic electric energy, and Periodic electric energy data
completion flag (Xn1/Xn2) will be turned ON.
(vi) Check that Periodic electric energy data completion flag (Xn1/Xn2) becomes ON, and obtain the
value of periodic electric energy.
Periodic electric energy 1 measurement flag (Yn1)
Periodic electric energy 1 data completion flag (Xn1)
Periodic electric energy 1 reset request (Yn3)
Periodic electric energy 1 reset completion flag (Xn3)
Figure 3.4.2-4 Example of measurement of periodic electric energy 1 every time after resetting
Periodic electric energy 1
OFF
ON
Periodic electric energy 1
OFF
ON
OFF
(i) (ii)
28
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
(iii) (iv) (v)
RE81WH
ON
(vi)